Collector grid and interconnect structures for photovoltaic arrays and modules

a photovoltaic array and interconnection technology, applied in the field of photovoltaic array and interconnection structure, can solve the problems of high cost of single crystal silicon material and interconnection processing, thwarting the widespread energy collection of single-crystal silicon cells, and reducing the efficiency of photovoltaic energy collection, so as to achieve the effect of eliminating deficiencies

Inactive Publication Date: 2010-09-09
SOLANNEX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patent is to improve the production of large solar power systems by addressing issues with previous methods.

Problems solved by technology

This patent describes various improvements related to the method of making certain types of electronic devices called DERs. One problem addressed in previous techniques was how to efficiently make large amounts of these devices quickly and easily. Another issue was finding ways to connect them together effectively. The new approach offers solutions to both issues simultaneousually.

Method used

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  • Collector grid and interconnect structures for photovoltaic arrays and modules
  • Collector grid and interconnect structures for photovoltaic arrays and modules
  • Collector grid and interconnect structures for photovoltaic arrays and modules

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0360]A standard plastic laminating sheet from GBC Corp. 75 micrometer (0.003 inch) thick was coated with DER in a pattern of repetitive fingers joined along one end with a busslike structure resulting in an article as embodied in FIGS. 16 through 19. The fingers were 0.020 inch wide, 1.625 inch long and were repetitively separated by 0.150 inch. The buss-like structure which contacted the fingers extended in a direction perpendicular to the fingers as shown in FIG. 16. The buss-like structure had a width of 0.25 inch. Both the finger pattern and buss-like structure were printed simultaneously using the same DER ink and using silk screen printing. The DER printing pattern was applied to the laminating sheet surface formed by the sealing layer (i.e. that surface facing to the inside of the standard sealing pouch).

[0361]The finger / buss pattern thus produced on the lamination sheet was then electroplated with nickel in a standard Watts nickel bath at a current density of 50 amps. per s...

example 2

[0365]Individual thin film CIGS semiconductor cells comprising a stainless steel supporting substrate 0.001 inch thick were cut to dimensions of 7.5 inch length and 1.75 inch width.

[0366]In a separate operation, multiple laminating collector grids were prepared as follows. A 0.002 inch thick film of Surlyn material was applied to both sides of a 0.003 inch thick PET film to produce a starting laminating substrate as embodied in FIG. 44. Holes having a 0.125 inch diameter were punched through the laminate to produce a structure as in FIG. 48. A DER ink was then printed on opposite surfaces and through the holes to form a pattern of DER traces. The resulting structure resembled that depicted in FIG. 51. The grid fingers 254 depicted in FIGS. 50 and 51 were 0.012 inch wide and 1.625 inch long and were spaced on centers 0.120 inch apart in the length direction. The grid fingers 252 were 0.062 inch wide and extended 1 inch and were spaced on centers 0.5 inch apart. The printed film was t...

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Abstract

An interconnected arrangement of photovoltaic cells is achieved using laminating current collector electrodes. The electrodes comprise a pattern of conductive material extending over a first surface of sheetlike substrate material. The first surface comprises material having adhesive affinity for a selected conductive surface. Application of the electrode to the selected conductive surface brings the first surface of the sheetlike substrate into adhesive contact with the conductive surface and simultaneously brings the conductive surface into firm contact with the conductive material extending over first surface of the sheetlike substrate. Use of the laminating current collector electrodes allows facile and continuous production of expansive area interconnected photovoltaic arrays.

Description

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Claims

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Application Information

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Owner SOLANNEX
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